The Gap Inc. distribution center in Gallatin has announced a $35 million expansion, which will add 90 jobs.

The Gallatin campus is one of Gap’s largest distribution centers and currently provides service to the southern region of the United States for Gap Inc. brands, including Gap and Gap Outlet, Banana Republic and Banana Republic Factory Stores and Old Navy.

The center has been in operation for 15 years in Gallatin, and ranks as one of Sumner County’s largest employers.

Company officials didn’t immediately respond to interview requests. Exactly what’s involved in the expansion has not been announced, including when hiring will begin or whether a new building will be needed or it will involve an expansion of the current facility.

“Gap Inc. is a valued corporate citizen, providing about 2,500 Tennesseans with high-quality jobs in 2012 alone,” said Bill Hagerty, Tennessee Department of Economic and Community Development commissioner. “Gap Inc.’s decision to expand its distribution center in Middle Tennessee speaks highly of our state’s central location and world-class infrastructure. I appreciate Gap Inc.’s investment and look forward to their continued presence in Tennessee.”

“That Gap Inc. has chosen to continue to grow here in Gallatin speaks highly of the working relationship we have, and to the quality of the workforce and transportation infrastructure in place,” said Gallatin Economic Development Agency Executive Director James Fenton.

Doris and Don Fisher opened the first Gap store in 1969 in San Francisco. Today, the company describes itself as a “leading global specialty retailer offering clothing, accessories and personal-care products for men, women, children and babies.”

Gap Inc. has about 134,000 employees and 3,100 company-operated stores, as well as more than 300 franchised stores around the world. The company says its Code of Business Conduct “promotes a responsible and ethical work environment for all Gap Inc. employees.”